US9925585B2 - Injection system applied to a die casting machine - Google Patents
Injection system applied to a die casting machine Download PDFInfo
- Publication number
- US9925585B2 US9925585B2 US15/167,253 US201615167253A US9925585B2 US 9925585 B2 US9925585 B2 US 9925585B2 US 201615167253 A US201615167253 A US 201615167253A US 9925585 B2 US9925585 B2 US 9925585B2
- Authority
- US
- United States
- Prior art keywords
- mold structure
- mold
- inlet
- container casing
- communicated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active, expires
Links
- 238000002347 injection Methods 0.000 title claims abstract description 45
- 239000007924 injection Substances 0.000 title claims abstract description 45
- 238000004512 die casting Methods 0.000 title claims abstract description 17
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 60
- 239000000463 material Substances 0.000 claims abstract description 20
- 238000004891 communication Methods 0.000 claims description 12
- 239000002184 metal Substances 0.000 description 11
- 229910052751 metal Inorganic materials 0.000 description 11
- 238000005266 casting Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/2015—Means for forcing the molten metal into the die
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/30—Accessories for supplying molten metal, e.g. in rations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/005—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure using two or more fixed moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/02—Hot chamber machines, i.e. with heated press chamber in which metal is melted
- B22D17/04—Plunger machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/2015—Means for forcing the molten metal into the die
- B22D17/2023—Nozzles or shot sleeves
Definitions
- the instant disclosure relates to an injection system, and more particularly to an injection system applied to a die casting machine.
- an injection plunger is used to inject a molten metal into a cavity of a die by an injection plunger.
- the quality of the cast product greatly depends upon the injection speed of the molten metal and the casting pressure (injection pressure). Therefore, it is necessary to suitable control the speed of movement (injection speed) and pressure of the injection cylinder driving the injection plunger. That is, the injection speed and the casting pressure (injection pressure) are controlled in accordance with the state of filling the molten metal between the casting cycles to realize the optimal injection operation.
- the injection plunger is made to move by a low injection speed so that the molten metal in the injection sleeve does not enter air.
- the injection speed is switched from low speed to high speed to make the injection plunger move by a high injection speed so as to complete the filling of the molten metal into the cavity before the molten metal cools and solidifies.
- the casting pressure injection pressure
- the molten metal is allowed to solidify while applying pressure to the molten metal in the cavity.
- One aspect of the instant disclosure relates to an injection system applied to a die casting machine.
- One of the embodiments of the instant disclosure provides an injection system applied to a die casting machine, comprising: a container module, a first mold module, a second mold module, and a pipe module.
- the container module includes a container casing member, and the container casing member has a material receiving space.
- the first mold module includes a first mold structure embedded inside the container casing member, a first inlet reinforcing structure disposed on the first mold structure and partially embedded inside the container casing member, and a second inlet reinforcing structure disposed on the first mold structure and partially embedded inside the container casing member.
- the second mold module includes a second mold structure.
- the pipe module includes a first pipe body connected between the first mold structure and the second mold structure and embedded inside the container casing member, and a second pipe body connected to the second mold structure.
- the first mold structure has a first inner guide channel, a first left inlet communicated with the first inner guide channel, a first right inlet communicated with the first inner guide channel, and a first outlet communicated with the first inner guide channel
- the first inlet reinforcing structure has a first communication opening communicated between the material receiving space and the first left inlet
- the second inlet reinforcing structure has a second communication opening communicated between the material receiving space and the first right inlet.
- the second mold structure has a second inner guide channel, a second inlet communicated with the second inner guide channel, and a second outlet opposite to the second inlet and communicated with the second inner guide channel.
- the first pipe body has a first connection portion embedded inside the first mold structure and communicated with the first outlet of the first mold structure, and a second connection portion embedded inside the second mold structure and communicated with the second inlet
- the second pipe body has a first connection portion embedded inside the second mold structure and communicated with the second outlet of the second mold structure, and a second connection portion exposed outside the second mold structure and connected to a nozzle.
- the container casing member has a first groove for receiving the first inlet reinforcing structure, and a second groove for receiving the second inlet reinforcing structure
- the first mold module further includes a first buffer structure disposed between the first inlet reinforcing structure and the first mold structure, and a second buffer structure disposed between the second reinforcing structure and the first mold structure.
- the injection system further comprises an enclosed structure including a first surrounding enclosed body, a second surrounding enclosed body, and a third surrounding enclosed boy.
- the first surrounding enclosed body is disposed on the first mold structure and surrounds the first pipe body for enclosing a first surrounding junction between the first mold structure and the first pipe body
- the second surrounding enclosed body is disposed on the second mold structure and surrounds the first pipe body for enclosing a second surrounding junction between the second mold structure and the first pipe body
- the third surrounding enclosed body is disposed on the second mold structure and surrounds the second pipe body for enclosing a third surrounding junction between the second mold structure and the second pipe body.
- the first mold module further includes a plurality of support members disposed on a bottom side of the first mold structure and embedded inside the container casing structure, the first mold structure has a plurality of first left positioning grooves disposed on a left lateral wall thereof for contacting the container casing structure, the first mold structure has a plurality of first right positioning grooves disposed on a right lateral wall thereof for contacting the container casing structure, and the second mold structure has a plurality of second positioning grooves disposed on an outer perimeter surface thereof for contacting the container casing structure.
- an injection system applied to a die casting machine comprising: a container module, a first mold module, a second mold module, a pipe module, and an enclosed structure.
- the container module includes a container casing member, and the container casing member has a material receiving space.
- the first mold module includes a first mold structure embedded inside the container casing member, a first inlet reinforcing structure disposed on the first mold structure and partially embedded inside the container casing member, and a second inlet reinforcing structure disposed on the first mold structure and partially embedded inside the container casing member.
- the second mold module includes a second mold structure.
- the pipe module includes a first pipe body connected between the first mold structure and the second mold structure and embedded inside the container casing member, and a second pipe body connected to the second mold structure.
- the enclosed structure includes a first surrounding enclosed body, a second surrounding enclosed body, and a third surrounding enclosed boy.
- the first surrounding enclosed body is disposed on the first mold structure and surrounds the first pipe body for enclosing a first surrounding junction between the first mold structure and the first pipe body.
- the second surrounding enclosed body is disposed on the second mold structure and surrounds the first pipe body for enclosing a second surrounding junction between the second mold structure and the first pipe body.
- the third surrounding enclosed body is disposed on the second mold structure and surrounds the second pipe body for enclosing a third surrounding junction between the second mold structure and the second pipe body.
- the container casing member has a first groove for receiving the first inlet reinforcing structure, and a second groove for receiving the second inlet reinforcing structure
- the first mold module further includes a first buffer structure disposed between the first inlet reinforcing structure and the first mold structure, and a second buffer structure disposed between the second reinforcing structure and the first mold structure.
- the first mold structure has a first inner guide channel, a first left inlet communicated with the first inner guide channel, a first right inlet communicated with the first inner guide channel, and a first outlet communicated with the first inner guide channel
- the first inlet reinforcing structure has a first communication opening communicated between the material receiving space and the first left inlet
- the second inlet reinforcing structure has a second communication opening communicated between the material receiving space and the first right inlet.
- the second mold structure has a second inner guide channel, a second inlet communicated with the second inner guide channel, and a second outlet opposite to the second inlet and communicated with the second inner guide channel.
- the first mold module further includes a plurality of support members disposed on a bottom side of the first mold structure and embedded inside the container casing structure, the first mold structure has a plurality of first left positioning grooves disposed on a left lateral wall thereof for contacting the container casing structure, the first mold structure has a plurality of first right positioning grooves disposed on a right lateral wall thereof for contacting the container casing structure, and the second mold structure has a plurality of second positioning grooves disposed on an outer perimeter surface thereof for contacting the container casing structure.
- the first pipe body has a first connection portion embedded inside the first mold structure and communicated with the first outlet of the first mold structure, and a second connection portion embedded inside the second mold structure and communicated with the second inlet
- the second pipe body has a first connection portion embedded inside the second mold structure and communicated with the second outlet of the second mold structure, and a second connection portion exposed outside the second mold structure and connected to a nozzle.
- an injection system applied to a die casting machine comprising: a container module, a first mold module, a second mold module, and a pipe module.
- the container module includes a container casing member.
- the container casing member has a material receiving space.
- the first mold module includes a first mold structure embedded inside the container casing member, a first inlet reinforcing structure disposed on the first mold structure and partially embedded inside the container casing member, and a second inlet reinforcing structure disposed on the first mold structure and partially embedded inside the container casing member.
- the second mold module includes a second mold structure.
- the pipe module includes a first pipe body connected between the first mold structure and the second mold structure and embedded inside the container casing member, and a second pipe body connected to the second mold structure.
- the corrosion resistance of the first mold structure of injection system of the instant disclosure is increased by matching the first inlet reinforcing structure and the second inlet reinforcing structure due to the designs of “the first inlet reinforcing structure disposed on the first mold structure and partially embedded inside the container casing member” and “the second inlet reinforcing structure disposed on the first mold structure and partially embedded inside the container casing member”.
- FIG. 1 shows a perspective, schematic view of an injection system applied to a die casting machine according to the instant disclosure
- FIG. 2 shows a cross-sectional view taken along the section line II-II of FIG. 1 ;
- FIG. 3 shows an enlarged view taken on part A of FIG. 2 ;
- FIG. 4 shows an enlarged view taken on part B of FIG. 2 ;
- FIG. 5 shows a perspective, assembled, schematic view of a first mold structure, a second mold structure, and a pipe module of an injection system applied to a die casting machine according to the instant disclosure
- FIG. 6 shows a perspective, exploded, schematic view of a first mold structure, a second mold structure, and a pipe module of an injection system applied to a die casting machine according to the instant disclosure
- the instant disclosure provides an injection system Z applied to a die casting machine, comprising a container module 1 , a first mold module 2 , a second mold module 3 , and a pipe module 4 .
- the container module 1 includes a container casing member 10 , and the container casing member 10 has a material receiving space 100 for receiving metal materials. More precisely, the container casing member 10 has a first groove 1001 and a second groove 1002 .
- the container casing member 10 may be a zinc pot or any metal pot.
- the first mold module 2 includes a first mold structure 20 embedded inside the container casing member 10 , a first inlet reinforcing structure 21 disposed on the first mold structure 20 and partially embedded inside the container casing member 10 , and a second inlet reinforcing structure 22 disposed on the first mold structure 20 and partially embedded inside the container casing member 10 . More precisely, the first inlet reinforcing structure 21 is received inside the first groove 1001 of the container casing member 10 , and the second inlet reinforcing structure 22 is received inside the second groove 1002 of the container casing member 10 .
- the first mold structure 20 has a first inner guide channel 200 , a first left inlet 201 communicated with the first inner guide channel 200 , a first right inlet 202 communicated with the first inner guide channel 200 , and a first outlet 203 communicated with the first inner guide channel 200 .
- the first inlet reinforcing structure 21 has a first communication opening 210 communicated between the material receiving space 100 and the first left inlet 201
- the second inlet reinforcing structure 22 has a second communication opening 220 communicated between the material receiving space 100 and the first right inlet 202 .
- the second mold module 3 includes a second mold structure 30 . More precisely, the second mold structure 3 has a second inner guide channel 300 , a second inlet 301 communicated with the second inner guide channel 300 , and a second outlet 302 opposite to the second inlet 301 and communicated with the second inner guide channel 300 .
- the pipe module 4 includes a first pipe body 41 connected between the first mold structure 20 and the second mold structure 30 and embedded inside the container casing member 10 , and a second pipe body 42 connected to the second mold structure 30 .
- the first pipe body 41 has a first connection portion 411 embedded inside the first mold structure 20 and communicated with the first outlet 203 of the first mold structure 20 , and a second connection portion 412 embedded inside the second mold structure 30 and communicated with the second inlet 301 .
- the second pipe body 42 has a first connection portion 421 embedded inside the second mold structure 30 and communicated with the second outlet 302 of the second mold structure 30 , and a second connection portion 422 exposed outside the second mold structure 30 and connected to a nozzle N.
- the first mold module 2 further includes a first buffer structure 23 (or a first cushion structure) disposed between the first inlet reinforcing structure 21 and the first mold structure 20 , and a second buffer structure 24 (or a second cushion structure) disposed between the second reinforcing structure 22 and the first mold structure 20 .
- the first buffer structure 23 and the second buffer structure 24 are O-ring seals.
- the injection system Z applied to a die casting machine further comprises an enclosed structure 5 .
- the enclosed structure 5 includes a first surrounding enclosed body 51 , a second surrounding enclosed body 52 , and a third surrounding enclosed boy 53 .
- the first surrounding enclosed body 51 is disposed on the first mold structure 20 and surrounds the first pipe body 41 for enclosing a first surrounding junction 208 between the first mold structure 20 and the first pipe body 41 .
- the second surrounding enclosed body 52 is disposed on the second mold structure 30 and surrounds the first pipe body 41 for enclosing a second surrounding junction 304 between the second mold structure 30 and the first pipe body 41 .
- the third surrounding enclosed body 53 is disposed on the second mold structure 30 and surrounds the second pipe body 42 for enclosing a third surrounding junction 305 between the second mold structure 30 and the second pipe body 42 .
- the first surrounding enclosed body 51 , the second surrounding enclosed body 52 , and the third surrounding enclosed boy 53 are weld-all-around enclosed structures formed by full welding.
- the first mold module 2 further includes a plurality of support members 25 disposed on a bottom side of the first mold structure 20 and embedded inside the container casing structure 10 .
- the first mold structure 20 has a plurality of first left positioning grooves 205 disposed on a left lateral wall 204 thereof for contacting the container casing structure 10
- the first mold structure 20 has a plurality of first right positioning grooves 207 disposed on a right lateral wall 206 thereof for contacting the container casing structure 10
- the second mold structure 30 has a plurality of second positioning grooves 303 disposed on an outer perimeter surface thereof for contacting the container casing structure 10 . Therefore, the first mold module 2 is firmly fixed inside the container casing structure 10 by using the support members 25 and matching the first left positioning grooves 205 and the first right positioning grooves 207 .
- the enclosed structure 5 further includes a plurality of fourth surrounding enclosed bodies 54 , and each fourth surrounding enclosed body 54 is disposed on the bottom side of the first mold structure 20 and surrounds the corresponding support member 25 for enclosing a fourth surrounding junction 209 between the first mold structure 20 and the corresponding support member 25 .
- each fourth surrounding enclosed body 54 is a weld-all-around enclosed structure formed by full welding.
- the corrosion resistance of the first mold structure of injection system Z of the instant disclosure is increased by matching the first inlet reinforcing structure 21 and the second inlet reinforcing structure 22 due to the designs of “the first inlet reinforcing structure 21 disposed on the first mold structure 20 and partially embedded inside the container casing member 10 ” and “the second inlet reinforcing structure 22 disposed on the first mold structure 20 and partially embedded inside the container casing member 10 ”.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Claims (10)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW105105433A TWI597111B (en) | 2016-02-24 | 2016-02-24 | Injection system applied to a die casting machine |
TW105105433A | 2016-02-24 | ||
TW105105433 | 2016-02-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20170239714A1 US20170239714A1 (en) | 2017-08-24 |
US9925585B2 true US9925585B2 (en) | 2018-03-27 |
Family
ID=56552229
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/167,253 Active 2036-11-25 US9925585B2 (en) | 2016-02-24 | 2016-05-27 | Injection system applied to a die casting machine |
Country Status (4)
Country | Link |
---|---|
US (1) | US9925585B2 (en) |
CN (1) | CN107116196B (en) |
DE (1) | DE202016102929U1 (en) |
TW (1) | TWI597111B (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5031686A (en) * | 1988-11-08 | 1991-07-16 | Electrovert Ltd. | Method for casting metal alloys with low melting temperatures |
US5657812A (en) * | 1994-11-15 | 1997-08-19 | Bachmann Giesserei Und Formenbau Gmbh & Co. Kg | Metal-casting apparatus and method |
US20080142184A1 (en) * | 2006-12-13 | 2008-06-19 | Ford Global Technologies, Llc | Dual plunger gooseneck for magnesium die casting |
CN102233418A (en) | 2010-04-30 | 2011-11-09 | 李解华 | Novel hot runner system |
TWM481082U (en) | 2014-03-21 | 2014-07-01 | Simhope Ind Co Ltd | Improved injection head structure |
CN204953847U (en) | 2015-07-31 | 2016-01-13 | 佛山市高明建强科技有限公司 | Hot chamber machine penetrate material device |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06142871A (en) * | 1992-11-04 | 1994-05-24 | Nippon Light Metal Co Ltd | Heat insulating tip for hot chamber die-casting machine for aluminum |
JPH08229637A (en) * | 1995-02-23 | 1996-09-10 | Asahi Tec Corp | Protective device of copper alloy mold |
US20090107646A1 (en) * | 2007-10-31 | 2009-04-30 | Husky Injection Molding Systems Ltd. | Metal-Molding Conduit Assembly of Metal-Molding System |
US9114455B1 (en) * | 2012-03-30 | 2015-08-25 | Brunswick Corporation | Method and apparatus for avoiding erosion in a high pressure die casting shot sleeve for use with low iron aluminum silicon alloys |
TWM527797U (en) * | 2016-02-24 | 2016-09-01 | Chung Chwan Entpr Co Ltd | Injection system for die-casting machine |
-
2016
- 2016-02-24 TW TW105105433A patent/TWI597111B/en active
- 2016-03-08 CN CN201610129929.3A patent/CN107116196B/en active Active
- 2016-05-27 US US15/167,253 patent/US9925585B2/en active Active
- 2016-06-01 DE DE202016102929.5U patent/DE202016102929U1/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5031686A (en) * | 1988-11-08 | 1991-07-16 | Electrovert Ltd. | Method for casting metal alloys with low melting temperatures |
US5657812A (en) * | 1994-11-15 | 1997-08-19 | Bachmann Giesserei Und Formenbau Gmbh & Co. Kg | Metal-casting apparatus and method |
US20080142184A1 (en) * | 2006-12-13 | 2008-06-19 | Ford Global Technologies, Llc | Dual plunger gooseneck for magnesium die casting |
CN102233418A (en) | 2010-04-30 | 2011-11-09 | 李解华 | Novel hot runner system |
TWM481082U (en) | 2014-03-21 | 2014-07-01 | Simhope Ind Co Ltd | Improved injection head structure |
CN204953847U (en) | 2015-07-31 | 2016-01-13 | 佛山市高明建强科技有限公司 | Hot chamber machine penetrate material device |
Also Published As
Publication number | Publication date |
---|---|
US20170239714A1 (en) | 2017-08-24 |
TW201729923A (en) | 2017-09-01 |
DE202016102929U1 (en) | 2016-07-12 |
TWI597111B (en) | 2017-09-01 |
CN107116196B (en) | 2018-12-28 |
CN107116196A (en) | 2017-09-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR102409159B1 (en) | Piston assembly for a pressure-producing device of a brake system of a motor vehicle | |
EP3003680B1 (en) | End of stroke actuator bleed | |
US20140363324A1 (en) | Piston Pump for a Vehicle Brake System | |
TWM495452U (en) | Fluid pressure cylinder | |
US20150211596A1 (en) | Method for producing a subassembly and subassembly | |
JP2012091488A (en) | Ejection device for mold and injection molding machine using the same | |
JP2015189012A (en) | Mold for injection molding | |
JP2014110372A (en) | Linear solenoid and linear solenoid valve, and method of manufacturing linear solenoid | |
US9925585B2 (en) | Injection system applied to a die casting machine | |
JP2019064277A5 (en) | Joined parts, manufacturing method of joined parts, ink tank, ink cartridge | |
US10065236B2 (en) | Injection system applied to a die casting machine | |
CN106270096A (en) | Can the miniature pipe fitting hydraulic forming device of axial supplement | |
KR20140093918A (en) | Die casting die having slide unit | |
US20170058850A1 (en) | Dispenser nozzle for high pressure injection | |
JP2014140878A (en) | Casting metal mold | |
CN207682759U (en) | A kind of immersion type casting device of micro conductive retractor collar ring body component | |
KR20200039414A (en) | a high pressure die casting within aluminum pipe and method thereof | |
JP6615040B2 (en) | Cylinder molding die and cylinder molding method using the same | |
CN101663522B (en) | One-piece metal orifice tube and solenoid valve including a one-piece metal orifice tube | |
JP6870506B2 (en) | Die casting equipment for aluminum | |
JP4378418B1 (en) | Molding apparatus and molding method | |
JP2021094716A (en) | Resin molded product | |
WO2015059239A1 (en) | A method of fabrication and a mold for fabricating a gasket of spiral shape | |
JP4633501B2 (en) | Injection cylinder load device | |
EP3967910A1 (en) | Solenoid valve |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CHUNG CHWAN ENTERPRISE CO., LTD., TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LIN, YU-PAU;REEL/FRAME:038739/0290 Effective date: 20160523 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
MAFP | Maintenance fee payment |
Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2551); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY Year of fee payment: 4 |
|
AS | Assignment |
Owner name: ZHONG CHUAN TECHNOLOGY LIMITED, TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CHUNG CHWAN ENTERPRISE CO., LTD.;REEL/FRAME:059432/0166 Effective date: 20220328 |
|
AS | Assignment |
Owner name: WEIFANG ZHONG CHUAN ZIP FASTENER ACCESSORY CO., LTD., CHINA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ZHONG CHUAN TECHNOLOGY LIMITED;REEL/FRAME:067316/0223 Effective date: 20240412 |